What does MOTOS mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: MOTOS.

[acronym from the 1970 U.S. census forms via Usenet: Member Of The
Opposite Sex] A potential or (less often) actual sex partner. See
MOTAS, MOTSS,
SO. Less common than MOTSS or
MOTAS, which has largely displaced it.